/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package ru.miit.elearning.vtutor.servlets;

import java.io.IOException;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import ru.miit.elearning.vtutor.data.CheckObject;
import ru.miit.elearning.vtutor.data.CheckObjectType;
import ru.miit.elearning.vtutor.data.DataMiner;

/**
 *
 * @author Cyclone
 */
public class LabTaskServlet extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        DataMiner miner = null;
        try {
            int labNumber = Integer.parseInt(request.getParameter("labNumber"));
            int courseId = Integer.parseInt(request.getParameter("courseId"));

            miner = new DataMiner();
            List<CheckObject> checkObjectList = miner.getCheckObjectList(courseId, labNumber);

            List<CheckObjectType> coTypeList = null;
            try {
                coTypeList = miner.getCheckObjectTypeList();
            } catch (Exception e) {
                Logger.getLogger(LabTaskServlet.class.getName()).log(Level.SEVERE, null, e);
                e.printStackTrace();
            }
            if (coTypeList != null) {
                request.setAttribute("coTypeList", coTypeList);
            }

            request.setAttribute("courseId", courseId);
            request.setAttribute("labNumber", labNumber);
            request.setAttribute("checkObjectList", checkObjectList);
            getServletContext().getRequestDispatcher("/labtask.jsp").forward(request, response);

        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (miner != null) {
                miner.close();
            }
//            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
